Rick
You could try transfer printing like they use to print designs on pottery mugs. Print the resist on a flat silicone pad and roll the dial against it to transfer print. You could use epoxy ink instead of resist if you did not want to etch. I used to do something similar for transferring scales onto glass flowmeter tubes.
Malcolm
I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
--- On Sun, 3/24/13, Rick Sparber <rgsparber@...> wrote:
From: Rick Sparber <rgsparber@...>
Subject: RE: [Homebrew_PCBs] Re: etching the OD of a cylinder to create a graduated dial
To: Homebrew_PCBs@yahoogroups.com
Date: Sunday, March 24, 2013, 1:04 AM
Malcolm,
I'm going to try the spray on photo resist and then a contact print. If that doesn't work, I'll be "back at the well" looking for more ideas.
Rick
-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Malcolm Parker-Lisberg
Sent: Friday, March 22, 2013 8:54 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: RE: [Homebrew_PCBs] Re: etching the OD of a cylinder to create a graduated dial
Rick
You could use one of the etch resist pens on it though.
Malcolm
I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
--- On Fri, 3/22/13, Rick Sparber <rgsparber@...> wrote:
From: Rick Sparber <rgsparber@...>
Subject: RE: [Homebrew_PCBs] Re: etching the OD of a cylinder to create a graduated dial
To: Homebrew_PCBs@yahoogroups.com
Date: Friday, March 22, 2013, 2:46 PM
Jim,
Looks like a fun machine but a bit too complex compared to contact printing
and chemical etching.
Rick
-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of Jim
Sent: Friday, March 22, 2013 7:37 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: etching the OD of a cylinder to create a
graduated dial
--- In Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@...>
wrote:
>
> > Rick S wrote:
> > <SNIP>
> > The trick is how to selectively apply or remove the wax.
> > <SNIP>
>
> Well we know inkjets work for molten wax.
>
Maybe an Eggbot with a scriber if the cylinder isn't too big?
http://egg-bot.com/
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